Add 72/10 and 98/21
1st number: 7 2/10, 2nd number: 4 14/21
72/10 + 98/21 is 178/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
72/10 = 72 × 21/10 × 21 = 1512/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
98/21 = 98 × 10/21 × 10 = 980/210 - Add the two like fractions:
1512/210 + 980/210 = 1512 + 980/210 = 2492/210 - 2492/210 simplified gives 178/15
- So, 72/10 + 98/21 = 178/15
In mixed form: 1113/15
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